Sydney
19.17 Adjustment and forfeiture of urban claim on surface water
Supporting information
Forfeiture of allocation for the line item is 597,366 ML.
This line item reflects unused portion of the allocation/claim associated with the urban water store for the urban water utilities. The volume for the line item is the difference between calculated volumetric allocation/claim stated in line item 11.18 (1,038,355 ML) and diversions stated in line item 11.12 (440,989 ML).
Quantification approach
Data source
Entitlement information was extracted from Water Sharing Plan for the Greater Metropolitan Unregulated River Water Sources; databases and water management licences for Goulburn Mulwaree Council, Lithgow City Council, Shoalhaven City Council and Wingecarribee Shire Council.
Provided by
The Bureau, calculated adjustment and forfeiture of allocation/claim; entitlement information from New South Wales Office of Water, Goulburn Mulwaree Council, Lithgow City Council, Shoalhaven City Council and Wingecarribee Shire Council.
Method
Water management licences issued to the urban holders by the NSW Office of Water applicable to the 2011–12 year did not make provisions for the carry-over of any remaining allocation at the end of the year. Therefore, forfeiture of allocation on flows for this entitlement category is the difference between the announced allocation/claim and measured diversions from the storages for the 2011–12 year. Calculation methods for the announced allocation and measured diversions are available in:
- line item 11.18 for the volumetric value for the announced allocation from the surface water store for the urban holder category
- line item 17.2 for metered diversions from storages.
Assumptions, limitations, caveats and approximations
See 'Approximations, assumptions, caveats/limitations' in line item 11.18 for volumetric value for the announced allocation/claim, and in line item 17.2 for metered diversions from storages.
Uncertainty information
Adjustment and forfeiture of allocation/claim was estimated. Uncertainty is ungraded.
Comparative year
This line item corresponds to line item 19.17 Decrease of urban claim on surface water reported in the 2011 Account.
Due to the updates reported in 17.12 Entitled diversion of allocated surface water to urban water system and 21.2 Surface water allocation announcements – urban water system the value reported in the 2011 Account has been restated from 584,696 ML to 599,518 ML.